[PATCH V2 3/8] mdev: bus uevent support
From: Jason Wang <jasowang@redhat.com>
Date: 2019-09-24 13:55:21
Also in:
dri-devel, intel-gfx, kvm, linux-s390, lkml
Subsystem:
the rest, vfio driver, vfio mediated device drivers · Maintainers:
Linus Torvalds, Alex Williamson, Kirti Wankhede
This patch adds bus uevent support for mdev bus in order to allow cooperation with userspace. Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/vfio/mdev/mdev_driver.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c
index b7c40ce86ee3..319d886ffaf7 100644
--- a/drivers/vfio/mdev/mdev_driver.c
+++ b/drivers/vfio/mdev/mdev_driver.c@@ -82,9 +82,17 @@ static int mdev_match(struct device *dev, struct device_driver *drv) return 0; } +static int mdev_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct mdev_device *mdev = to_mdev_device(dev); + + return add_uevent_var(env, "MODALIAS=mdev:c%02X", mdev->class_id); +} + struct bus_type mdev_bus_type = { .name = "mdev", .match = mdev_match, + .uevent = mdev_uevent, .probe = mdev_probe, .remove = mdev_remove, };
--
2.19.1